The (1) XENMEM_decrease_reservation, (2) XENMEM_populate_physmap, and (3) XENMEM_exchange hypercalls in Xen 4.2 and earlier allow local guest administrators to cause a denial of service (long loop and hang) via a crafted extent_order value.

The guest_physmap_mark_populate_on_demand function in Xen 4.2 and earlier does not properly unlock the subject GFNs when checking if they are in use, which allows local guest HVM administrators to cause a denial of service (hang) via unspecified vectors.

The XENMEM_exchange handler in Xen 4.2 and earlier does not properly check the memory address, which allows local PV guest OS administrators to cause a denial of service (crash) or possibly gain privileges via unspecified vectors that overwrite memory in the hypervisor reserved range.

Array index error in the HVMOP_set_mem_access handler in Xen 4.1 allows local HVM guest OS administrators to cause a denial of service (crash) or obtain sensitive information via unspecified vectors.

Stack-based buffer overflow in the dirty video RAM tracking functionality in Xen 3.4 through 4.1 allows local HVM guest OS administrators to cause a denial of service (crash) via a large bitmap image.

Xen 4.x, when downgrading the grant table version, does not properly remove the status page from the tracking list when freeing the page, which allows local guest OS administrators to cause a denial of service (hypervisor crash) via unspecified vectors.

The client in FreeIPA 2.x and 3.x before 3.1.2 does not properly obtain the Certification Authority (CA) certificate from the server, which allows man-in-the-middle attackers to spoof a join procedure via a crafted certificate.

tools/sample_data.sh in OpenStack Keystone 2012.1.3, when access to Amazon Elastic Compute Cloud (Amazon EC2) is configured, uses world-readable permissions for /etc/keystone/ec2rc, which allows local users to obtain access to EC2 services by reading administrative access and secret values from this file.

The v2 API in OpenStack Glance Grizzly, Folsom (2012.2), and Essex (2012.1) allows remote authenticated users to delete arbitrary non-protected images via an image deletion request. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-4573.

Moodle 2.3.x before 2.3.3 allows remote authenticated users to bypass the moodle/role:manage capability requirement and read all capability data by visiting the Check Permissions page.

The Database activity module in Moodle 2.1.x before 2.1.9, 2.2.x before 2.2.6, and 2.3.x before 2.3.3 allows remote attackers to bypass intended restrictions on reading other participants' entries via an advanced search.

The Portfolio plugin in Moodle 2.1.x before 2.1.9, 2.2.x before 2.2.6, and 2.3.x before 2.3.3 allows remote authenticated users to upload and execute files via a modified Portfolio API callback.

Within the RHOS Essex Preview (2012.2) of the OpenStack dashboard package, the file /etc/quantum/quantum.conf is world readable which exposes the admin password and token value.

The file /etc/openstack-dashboard/local_settings within Red Hat OpenStack Platform 2.0 and RHOS Essex Release (python-django-horizon package before 2012.1.1) is world readable and exposes the secret key value.

The Database activity module in Moodle 2.1.x before 2.1.9, 2.2.x before 2.2.6, and 2.3.x before 2.3.3 allows remote authenticated users to read activity entries of a different group's users via an advanced search.

lib/formslib.php in Moodle 2.2.x before 2.2.6 and 2.3.x before 2.3.3 allows remote authenticated users to bypass intended access restrictions via a modified value of a frozen form field.

The Dropbox Repository File Picker in Moodle 2.1.x before 2.1.9, 2.2.x before 2.2.6, and 2.3.x before 2.3.3 allows remote authenticated users to access the Dropbox of a different user by leveraging an unattended workstation after a logout.

libpng_plugin in VideoLAN VLC media player 2.0.3 allows remote attackers to cause a denial of service (application crash) via a crafted PNG file.

Heap-based buffer overflow in iconvert.c in the bogolexer component in Bogofilter before 1.2.3 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via an email containing a base64 string that is decoded to incomplete multibyte characters.

Session fixation vulnerability in Special:UserLogin in MediaWiki before 1.18.6, 1.19.x before 1.19.3, and 1.20.x before 1.20.1 allows remote attackers to hijack web sessions via the session_id.